TY  - BOOK
AU  - Balser Werner
TI  - Formal power series and linear systems of meromorphic ordinary differential equations
SN  - 0-387-98690-1
U1  - 515.2432 
PY  - 2000///
CY  - New York
PB  - Springer-Verlag
KW  - Linear differential equations
KW  - Meromorphic functions
KW  - Power series
ER  -